1202320011 has 4 divisors (see below), whose sum is σ = 1603093352. Its totient is φ = 801546672.

The previous prime is 1202320003. The next prime is 1202320013. The reversal of 1202320011 is 1100232021.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1202320011 - 2³ = 1202320003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1202320013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200386666 + ... + 200386671.

It is an arithmetic number, because the mean of its divisors is an integer number (400773338).

Almost surely, 2^1202320011 is an apocalyptic number.

1202320011 is a deficient number, since it is larger than the sum of its proper divisors (400773341).

1202320011 is an equidigital number, since it uses as much as digits as its factorization.

1202320011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400773340.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1202320011 is about 34674.4864561827. The cubic root of 1202320011 is about 1063.3429559788.

Adding to 1202320011 its reverse (1100232021), we get a palindrome (2302552032).

The spelling of 1202320011 in words is "one billion, two hundred two million, three hundred twenty thousand, eleven".